Oil burner



Patented Mar. 29, 1927.

, um'rso STATES JQMES CORBETT MILLAB,

OF DE PERE, WISCONSIN.

OIL BURNER.

Application filed February 5, 1925. "Serial No. 6,998.

The invention relates to an oil burner, and more especially tohydrocarbon oil burners,

The primary obj ectot the invention is the provision of a burner of thischaracter, wherein the an. before coming into contact with the oil isheated to a high degree, so

vision of a burner of his character, wherein the construction thereofpermits the same to be used in a furnace or stove of the domestic type,and the oil-fed thereto will be vaporized in an efiicient manner andcomingle with the requisite amount of air which supplies the oxygen tosupport combustion. i

\ A further object of theinvcntion is the provision of a burner of thischaracter, wherein the air is delivered thereto in a circuitous mannerso as to be preheated. and thereby effect the vaporization of the oil immediately oncontact therewith, thus eliminating the smoking of theburner, as per feet combustion is effected.

A still further object of the invention is the provision of a burner ofthis character, which is extremely simple in construction, thoroughlyreliable and eflicacious in its operation, strong, durable, possessingbut few parts, novel in construction, easily cleaned, capable of quickrepair, and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts, as willbe hereinafter fully described, illustrated in the accompanying drawing,and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is atop plan view of tlie'oil burner constructed in accordancewith the invention.

Figure 2 is a vertical sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a bottom plan view looking in the direction of the arrows33, of Figure 2.

Figure 4 is a sectional view taken on the line 4 -4 of Figure 1.-

Figure 5 is an enlarged fragmentary sectional view taken on the line 5-5of Figure 2.

responding parts throughout the several Figuiie B is a sectional viewtaken on the line 6- -6 of Figure 5.

Similar reference characters indicate corviews in the drawing.

Referring to the drawing in detail, designates generally the body of thedil burnerypretcrably made from cast'metal, although the same may bemade from any other suitable material, and includes a circu lar disclike top 10, and an annular rim 11, integral therewith. This body A, isadapted to be placed. in a furnace or the like and sur-; rounded by firebrick or any other suitable: material, so that all draft will have togd= into and through the burner.

Formed intcriorly of the body A, is series of air chambers 12, 13, and14, the said; chamber 12, being of duplex-type to pro- \idc asupplemental chamber 15, the latter having an open bottom 16,communicating, with the interior of said body A,'whi1e the otherchambers are closed at their bottomt 17. thus being shut off fromcommunicationwith the body A, yet these chambers 12. 15/, and 14, areformed with inner end openings 18, for communication with the hollowcenter or burner cup 19, which opens through the top 10, of the body A.

Located within the hollow center or burner cup 19, is a series ofvertically aligned superposed radially armed oil trays 20, 21, and 22.respectively, the hub 23, of each being fitted about and secured to avertical oil pipe 24. extending upwardly centrally through the hollowcenter or burner cup 19, the upper end of this pipe terminatingsubstantially flush with the top 10, and is adapted to deliver oil tothe trays. as will be obvious.

Leading fromthe' hollow center ,or burner cup 19, through its closedbottom is an overflow or drain pipe 25, adapted to carry 05 surplus oildelivered to the trays.

The trays 20, 21, and 22, longitudinally of their arms in the upperfaces are formed with oil channels. or grooves 26. for trapping oiltherein delivered to the trays by the supply pipe 24, the oil in thetrays being ignited for the operation of the burner.

Rising above the top 10. of the body A, eocent-rically of the burner cup19, are invertcd substantially. U-shaped air circulating tubes 27 28,and 29, communicating with the respective compartments or'chambers 12,13,

feet combustion.

and 14, and also with the interior of the body A, while overhanging theburner cup 19, 1s an inverted substantially U shaped air Suppl" pipe 30,which communicates with 5 ,the supplemental chamber 15, and has its opl5pit and is drawn through the hollow center or urner cup 19, the aircirculating through the tubes andair supply pipe, respectively, ispro-heated, and in this manner complete combustion isobtained during theworking 19 of the burner.

The air in the tubes 27, 28, and 29, is caused to circulate therethroughby the draft in the chimney for the furnace.

It will'be apparent that the air before coming into contact with the oilis heated to a high degree while passing through the tubes. 27, 28, and29, and when the heated air comes into contact with the oil trays 20,21, and 22, the oil is thoroughly vaporized,

so that the burner when operatmg' is really burning gas. The burner issmokeless by reason of the assurance of complete combustion.

It is obvious that the circulating tubes 27,

acaaaea 28, and 29, produce a current of heated air all around theburner cup 19, and in this manner the oil is properly vaporized.

What is claimed is:

- 1. Aburner of the character described, comprising a body having acentral burner cup, superposed oil trays each having radial armsarranged in. said cup, means supplying oil to the trays, an overflowpipe leading from the cup, said body being provided with air chambersccc entrically of the burner cup, and opening into the latter, aircirculating tubes opening into the body and into the chambers, and meansoverhanging the burner cup ejecting air onto the trays from the interiorof the body.

2. A burner ot' the character described, comprising a body closed at itstop and open at the bottom, and having a series of air chambersconcentrically? thereof, a burner cup centrally of "the body andcommunicating with the air chambers, means for delivering air from theinterior-oi, the body to said chambers, superposed oil trays located inthe cup and each having radial arms formed with oil channels in theirupper faces, means for delivering oil to the channels in the trays,means for draining surplus oil from the cup, and means for ejecting aironto the trays and communicating with the interior of the body. I

In testimony whereof I affix my signature.

JAMES CORBETT MILLAR-

